I heard a hissing noise (coming from what I can tell) the back of the intake. Has anyone done one of these on a 4.0l? I have looked around the forum but have come up unsuccessful in finding a step by “step or how to” thread to assist me. I don the want to dive in blindly if I can help it. Has anyone replaced an intake manifold gasket on a 94 4.0l and been successful? Any help will be appreciated!